Improvement in cylinders for steawi-hanimers



Tfn. MORGAN] improvement in Cylinders forSteam-Hammes.

N0. 125,976, I Patented April23,187*2.

` I'Ial n n nlnnnnn 'n nggg Uivrrn THOMAS R. MORGAN, OF PITTSBURG,PENNSYLVANIA, ASSIGNOR OF ONE- HALF HIS RIGHT TO CHARLES E. MARCHAND, OFSAME PLACE.

IMPROVEMENT IN CVLINDERS FOR STEAM-HAMMERS.

Specification forming part of Letters Patent No. 125,976, dated April23, 1872.

SPECIFICATION.

To all whom it may concern:

Be it known that I, THOMAS R. MORGAN, of Pittsburg, in the countyofAllegheny and State ofPennsylvania, have invented certain new anduseful Improvements in Cylinder-Heads for Steam-Hammers 5 and I dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanyin g drawingand to the letters ot' reference marked thereon, which form a part ofthis speciticatio'n.

My invention relates to a new and improved device for preventing thebreakage of steamhammer cylinder-heads and cylinders by means of aspring or a positive elastic cushion.

In the accompanying drawing, Figure 1 is a top view of the cylinder ofan ordinarysteamhammer, having attached to it my improvement. Fig. 2 isa vertical section of the cylinder of an ordinary steam-hammer, showingthe position of my improved device.

` Letters of reference denote parts.

In Fig. 2 of the accompanying drawing, A represents an ordinary cylinderof a steamhammer, showing the piston at its upper stroke. Attached to,and upon the top of cylinder A, is a detachable cylinder-head, C,securely fastened thereto by bolts or other suitable means. Thecylinder-head C has a covering or headplate, F. The bumper-pin D, whichcan be made of iron or any other suitable material, is placed inposition through the upper end of said cylinder-head C, and rests upontwo shoulders inside of the cylinder-head C. This bumperpin D extendsthrough the lower part ot' said cylinder-head U a suiiicient distance toprevent the piston from striking its under side. The

remaining space, E, in said cylinder-head C is occupied by a spiral orany other kind of metal spring, or by rubber or any oth er kind ofbrouspacking, such a's hemp. Upon the said bumperpin D and the said spring orpacking in space E being placed in position, the covering or head-plateF is placed on top and securely parent. Instead ot' the piston strikingthe cylinder-head the bumper-pin D receives the concussion, which, beingforced against the spring or packing-cushion in the space E, preventsthe breakage of either the cylinder or cylinderhead. It is also of greatvalue, because not requiring the amount of care or skill on the partofthe person engaged in working said steam-hammer.

A cylinder with a cylinder-head constructed as described permits ofthepiston-rod being made long enough to allow its withdrawal at the upperend of said cylinder, for the purpose of changing packing or makingexamination of the interior of said cylinder, by simply removing saidcylinder-head C, and without disarranging other parts of thesteam-hammer. The bumper-pin D or the spring or cushion` placedin thespace E can also be readily withdrawn by removing the head-plate F.

Having thus described my invention, what I claim as new, and desire tosecure by Letters two witnesses.

THOS. R. MORGAN. Witnesses:

MAX EVERLING, BoLrr SMITH.

